Improvement in groovihg-machine



identit mes W. G. RAOUL, OF INDEPENDENCE, LOUIEIANA.

Letters Patent .N 99,350, dated February 1, 1870.

IMPROVEMENT IN GROQ'VING-MACHINE.

The Schedule Vreferred to in these Letters Patent and making peut of thesame.

To all. whom fit may concern Be it known that I, W. GltAoUL, ofIndependence, in the parslrof Taugipahoa, and State of Louisiana, haveinvented a new and improved Gaining-Machine; and I do hereby declarethat the following is a full, clear, and exact description thereof,which will enable others skilled in the nrt to made and use the saine,reference being had to the accompanying drawings, forming part ot' thisspectication.

This invention relates to improvements in machines for cutting slots orgains in timber for framing, wlicreby it is designed to provide a simpleand eiiieient machine for performing the work rapidlyy and cheaply,cutting the said gains at any required angle to the timber.

lhe invention consists in the arrangement of' an iinproved adjustablerotary cut-ter, a vertically and horizontally-adjustable feeding-table,and clamping-devices for holding the work to be operated on, all ashereinafter more fully specified.

Figure 1 represent-s a sectional elevation of my improved machine, takenon the line :c fc of iig. 2.

Figure 2 representsa plan view of the same.

Similar letters of reference indicate corresponding parts. A

A and B represent disks, ar one being xed and the other or from it.

'lhese disks calry in their outer sides radial cutters, D, for cuttingdown the shoulders of the gains or recesses. They also carry' betweenthem/dat cutters, E, for planing out the substance between the endcutters D. The said cutters E are held in grooves and brackets on theinner faces oi' the disks, pitched tangentially to a circumferentialliuc between the periphery and the axis ofthe disks.

The brackets F and grooves for holding the cutters are appliedalternately to each disk, so that the disks may be moved to or from eachother, for narrower or wider gains, which' may thus be cut by narrowtools, those ot' one disk lapping those ofthe other.

G represents a feeding-table, placed on ways, and provided with a largecentral circular opening, in which anged on a mandrel, C, beingadjustable toward is placed an adjusting-ring, I, for holding the timbert0 be eut at any required angle to thecutting-tool, which works at thecentre ot' this opening, and within this ring is another clamping-ring,IC.. t

'lhe table has an annular rebate, whereon the ring I rests, and asimilar rebate in the latter supports the ring K.

Ihe ring I may be turned tc cured by a set-screw, L. It a which thetimber N is clamped,V the cutting-tool.

The ring K carries holding-dog -r l adjustable vertically, and providedwith se i s( ews l". The timber Q is placed under these dogs, and thcring K is turned bythe hand-lever It, so as to bring the timber upagainst the pins M, ot' the ring l, snugly, where it is thus held whilelbeing cut.

'Io vary the depth of the gains or grooves, the ways H, wherein thetable moves to feed the timber up to the cutter, are made adjustable vi'f sally, and an adjusting-trarne, the two sidewbars hich have inclinesT, working under the way s, is used, and it is provided with auadjusting-screw, U for moving it to and fro, for raising or lowering thisaid ways.

The bearing V, of the mandrel oi.' the cutter, is made adjustable, sothat the mandrel maybe readily removed and a mandrel carrying a sawsubstituted, to make the machine available for sawing-purposes.

Having thus described my invention,

I claim as new, and desire to secure by Letters Patentposition, andsepns M, against w holding against 1. The arrangement of disks A B,cutters D E, manable, G, of an @hen arranged (t. RAOUL.

Vit-nesses:

Satin. L. Grooms,

A. A. WILKiNs.

